Nauka Przyroda Technologie

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Robert Głowski, Włodzimierz Parzonka
Exploitation and influence of storage reservoir in Brzeg Dolny on Odra river valley
Summary. Brzeg Dolny barrage has been constructed in 1958. Barrage consist of 5-gate weir, power station and lock. Discharges up to 240 m3/s are used by turbines of the power station. Higher discharges are passed through the movable seals of the weir. During the exploitation of storage reservoir, upstream of the weir the peninsula of sediments occurred. Because of presence of this peninsula the coefficient of discharge of the weir has been lowered about 15-30%. In 90th’s years of XX Century, in lower part of the storage reservoir the islands of sediments with lengths between 300 and 900 m occurred. The peninsula and islands were created with fine grained sediments. These islands have been quickly covered by vegetation with maximum height about 4 m. In 80th’s years of XX Century three big local scowers occurred below the weir Brzeg Dolny with maximum depth of about 12.5 m. Additionally below the barrage the linear erosion of Odra river bed has been developed. Mean lowering of the Odra river bed caused by linear erosion has been estimated about 6.2 cm/year. In 1961 the range of the linear erosion reached the 308 km of Odra river and today about 332 km (cross section Ścinawa). This phenomenon causes a complications in navigation because required water depths during navigational season are to low for barges with load capacity of 800 Mg. The barrage has also negative influence on Odra river valley, because of influence of inundation of valley due to damming up of water upstream and draining influence below.
Key words: storage reservoir, river valley, sediment transport, hydraulic erosion
PDFFull text available in Polish in Adobe Acrobat format:
http://www.npt.up-poznan.net/tom1/zeszyt2/art_19.pdf

For citation:

MLA Głowski, Robert, and Włodzimierz Parzonka. "Eksploatacja i oddziaływanie zbiornika Brzeg Dolny na rzece Odrze." Nauka Przyr. Technol. 1.2 (2007): #19.
APA Robert Głowski, Włodzimierz Parzonka (2007). Eksploatacja i oddziaływanie zbiornika Brzeg Dolny na rzece Odrze. Nauka Przyr. Technol. 1 (2), #19
ISO 690 GłOWSKI, Robert, PARZONKA, Włodzimierz. Eksploatacja i oddziaływanie zbiornika Brzeg Dolny na rzece Odrze. Nauka Przyr. Technol., 2007, 1.2: #19.
Corresponding address:
Robert Głowski
Robert Głowski
Instytut Inżynierii Środowiska
Uniwersytet Przyrodniczy we Wrocławiu
pl. Grunwaldzki 24
50-363 Wrocław, Poland

e-mail: robg@iis.ar.wroc.pl
Accepted for print: 10.05.2007